What had the biggest effect on the drop in total water withdrawals in 2015?
Thermoelectric power and irrigation remained the two largest uses of water in 2015, and total withdrawals decreased for thermoelectric power but increased for irrigation.
Which state withdrew the most fresh groundwater in 2015?
Groundwater withdrawals, by State, 2015 Saline groundwater withdrawals were predominantly used for mining (80 percent) and occurred in Texas, California, and Oklahoma. Irrigation used greater than three times more fresh groundwater than public supply, which was the next largest use of fresh groundwater in the Nation.
What percentage of surface water was used in the US in 2015?
In 2015, California and Texas accounted for 16% of U.S. water withdrawals.
What is the main reason for the decline in total US water use since 2005?
The biggest drop started in 2005 when the U.S. used about 410 bgd. Measured on a per capita basis, water use fell from close to 1,300 gallons of water a day per capita in 2005 to 1,100 gallons in 2010. Much of that decline came from a change in how power plants are cooled.
What was the largest use of water in the United States in 2015?
Total water use, by category of use, 2015 Thermoelectric power and irrigation remained the two largest uses of water in 2015, and total withdrawals decreased for thermoelectric power but increased for irrigation.
What percentage of drinking water is groundwater?
Groundwater pumped from these aquifers provides nearly 50 percent of the nation’s drinking water.
What are the 3 largest uses of surface water in the US?
The main uses of surface water include drinking-water and other public uses, irrigation uses, and for use by the thermoelectric-power industry to cool electricity-generating equipment.
What are the two biggest sources of water consumption in the US?
Why did water consumption decrease?
Thermoelectric power generation, irrigation, and public supply make up 90% of water use in the country. Of all categories of water use, thermoelectric power use decreased the most, down 18% from 2010. Since 1985, industrial water use has consistently declined and 2015 estimates are about 43% less than in 1985.
Where is the most freshwater in the United States?
The Great Lakes are one of the world’s largest surface freshwater ecosystems.
- 84% of North America’s surface fresh water.
- about 21% of the world’s supply of surface fresh water.
- Physical Features of the Great Lakes.
- The Great Lakes Atlas Third Edition 1995 is available from NSCEP, US EPA’s publication service.